D-Link Air DWL-122 User manual

Manual

Building Networks for People

2.4GHz Wireless USB Adapter

Air DWL-122

D-Link

Contents

PackageContents ................................................................................3

Introduction............................................................................................4

Wireless Basics....................................................................................6

InsertingandRemovingtheDWL-122;UsingtheExtensionCord ..........9

GettingStarted....................................................................................10

UsingtheConfigurationUtilitywithWindowsOS..................................13

UsingtheConfigurationUtilitywithMacintoshOS ................................20

NetworkingBasics ..............................................................................25

Troubleshooting...................................................................................38

TechnicalSpecifications ......................................................................41

At least 32 MB of memory and a 300 MHz processor

Properly installed and working USB Controller

Windows XP/2000/Me/98SE

Acomputer or laptop with an available USB port

D-Link Air DWL-122

2.4 GHz Wireless USB Adapter

Manual on CD-ROM

QuickInstallation Guide

USB Extenstion Cable

Contents of Package:

Package Contents

If any of the above items are missing, please contact your reseller.

System Requirements:

Mac OSX (v10.2x or later)

Introduction

The D-Link Air DWL-122 Wireless USB Adapter is a convenient Plug & Play

USB 1.1 solution that brings wireless networking to your laptop or desktop PC.

With transfer rates up to 11Mbps you can connect to a wireless network at

home, at the office or at any wireless hotspot. Now you can stay connected

wherever you are and wherever you go.

The DWL-122 is Wi-Fi compliant, meaning that it can connect and interoperate

with other 802.11b Wi-Fi-compliant wireless routers, access points and

adapters. The DWL-122 connects to any available USB port on a laptop or

desktopWindows and Macintosh-basedcomputerand also includesa standard

USB extension cable. With the optional USB extension cable, the DWL-122

canbepositionedvirtuallyanywhereataworkstationtoachieve the bestavailable

wireless signal reception - whether that workstation is in your office, on your

deckor patio, by the pool,at thelocal coffee shop, or inan airportterminal while

waiting to board your next flight.

The adapter works with Apple Mac OS X (10.2x or later) Jaguar, Microsoft

Windows XP, Windows 2000 and other Windows operating systems to ensure

that you’ll be up and running on a wireless network in just a matter of seconds.

The DWL-122 also features 64 or 128-bit WEP encryption providing a level of

security for the data that you wirelessly transmit.

Using its default settings, the DWL-122 automatically connects to other D-Link

Wireless products as soon as it’s active.

Features and Benefits

* Environmental factors may adversely affect range

Convenience of Plug & Play installation

Fully 802.11b compatible

One year warranty (USA only)

Connects at up to 328 feet indoors*

User-friendly configuration and diagnostic utilities

Supports infrastructure networks via an Access Point or Router and

Peer-to-Peer communication in Ad-Hoc mode

Network Security with with 64-bit and 128-bit WEP encryption

USB 1.1 standard

Compact size for placement anywhere

D-Link wireless products are based on industry standards to provide easy-to-

useandcompatiblehigh-speedwirelessconnectivitywithinyour home, business

or public access wireless networks. D-Link wireless products will allow you

access to the data you want, when and where you want it. You will be able to

enjoy the freedom that wireless networking brings.

A WLAN is a cellular computer network that transmits and receives data with

radio signals instead of wires. WLANs are used increasingly in both home and

office environments, and public areas such as airports, coffee shops and

universities. Innovative ways to utilize WLAN technology are helping people to

work and communicate more efficiently. Increased mobility and the absence of

cabling and other fixed infrastructure have proven to be beneficial for many

users.

Wireless users can use the same applications they use on a wired network.

Wireless adapter cards used on laptop and desktop systems support the same

protocols as Ethernet adapter cards.

Wireless Basics

Features

Link/ActivityLED

Power - Indicates that the

DWL-122is properly

installed in the computer.

Link - Blinks when data is

beingtransmitted through

thewireless connection.

USB connector

Used to connect the

DWL-122 to your

computer

Internal Antenna

Used to wirelessly connect

to802.11bnetworks

Wireless Basics (continued)

People use wireless LAN technology for many different purposes:

Mobility - Productivity increases when people have access to data in any

locationwithintheoperating range of theWLAN. Managementdecisionsbased

on real-time information can significantly improve worker efficiency.

Low Implementation Costs –WLANsare easy to set up, manage, change

and relocate. Networks that frequently change can benefit from WLANs ease

ofimplementation. WLANscan operate in locations whereinstallation ofwiring

may be impractical.

Installation and Network Expansion - Installing a WLAN system can be

fastandeasyandcaneliminatetheneedtopullcablethroughwallsandceilings.

Wireless technology allows the network to go where wires cannot go - even

outside the home or office.

Scalability – WLANs can be configured in a variety of topologies to meet the

needs of specific applications and installations. Configurations are easily

changed and range from peer-to-peer networks suitable for a small number of

userstolarger infrastructure networksto accommodate hundredsorthousands

of users, depending on the number of wireless devices deployed.

Inexpensive Solution - Wireless network devices are as competitively

priced as conventional Ethernet network devices.

Wireless Basics (continued)

Installation Considerations

The D-Link Air DWL-122 lets you access your network, using a wireless

connection, from virtually anywhere within its operating range. Keep in mind,

however, that the number, thickness and location of walls, ceilings, or other

objectsthatthe wireless signals must passthrough,may limit therange. Typical

ranges vary depending on the types of materials and background RF (radio

frequency) noise in your home or business. The key to maximizing wireless

range is to follow these basic guidelines:

Keep the number of walls and ceilings between the DWL-122 and other

network devices to a minimum - each wall or ceiling can reduce your D-

Link wireless product’s range from 3-90 feet (1-30 meters.) Position your

devices so that the number of walls or ceilings is minimized.

Be aware of the direct line between network devices.Awall that is 1.5 feet

thick(.5 meters), ata 45-degree angle appears tobe almost 3feet (1 meter)

thick.At a 2-degree angle it looks over 42 feet (14 meters) thick! Position

devicessothat thesignalwill travel straightthrough a wallorceiling (instead

of at an angle) for better reception.

Keep your product away (at least 3-6 feet or 1-2 meters) from electrical

devices or appliances that generate extreme RF noise.

Building Materials can impede the wireless signal - a solid metal door or

aluminumstudsmayhaveanegativeeffect on range.Trytopositionwireless

devices and computers with wireless adapters so that the signal passes

through drywall or open doorways and not other materials.

Removing the DWL-122 (Windows XP)

After installing the DWL-122,

this icon will appear in the

taskbar at the bottom of the

screen (for WinXP service

pack I and above).

Before you disengage the

DWL-122 from the USB

port, you must click on the

icon (illustrated above) that

resides in the taskbar.

When the screen at right

appears,highlight the

DWL-122.

Click Stop

Windows will notify you when it is safe to remove the DWL-122 from the USB

port.

Inserting the DWL-122

Using the DWL-122 with

the extension cord

Plug one end of the USB extension cord into

the USB port on your computer and plug the

other end into the DWL-122.

Insert the DWL-122 into an available USB

port.

Getting Started

With its default settings, the DWL-122 will connect with other

D-Link Air products, right out of the box.

A wireless broadband Router-

D-Link AirPlus DI-614+

A laptop computer with a USB wireless network adapter -

D-Link Air DWL-122

A desktop computer with a USB wireless network adapter -

D-Link Air DWL-122

A Cable modem -

D-Link DCM-201

There are basically two modes of networking:

Infrastructure – using an Access Point or Router, such as the DI-614+.

Ad-Hoc – directly connecting to another computer, for peer-to-peer

communication, using wireless network adapters on each computer, such

as two or more DWL-122 wireless USB adapters.

On the following pages we will show you an example of an Infrastructure

Network and an Ad-Hoc Network.

An Infrastructure network contains an Access Point or Router. The

Infrastructure Network example shown on the following page contains the

D-Link network devices listed here; (your existing network may be comprised

of other devices).

Getting Started (continued)

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